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The document provides construction specifications for floors, internal wall systems, roof insulation and venting, dormer cheeks/front panel details, and dormer flat-roof assembly. It also includes staircase, rainwater drainage, and key compliance and verification notes for dimensions, party walls, and building regulations.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/dormer-loft-plans-proposed-loft-plan-scale-150-construction-notes-drawing-no-01r1-of-01/650462/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/dormer-loft-plans-proposed-loft-plan-scale-150-construction-notes-drawing-no-01r1-of-01/650462.png","ImageObject",300,407,{"name":92,"@type":93},"Valentina","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the proposed scale used in the loft plan drawing?","Question",{"text":112,"@type":113},"The plan states “Proposed Loft Plan Scale: 1:50”.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What materials and thicknesses are specified for the internal wall construction?",{"text":117,"@type":113},"New internal stud walls use 100x50mm studs with 100mm Rockwool, finished with 13mm plasterboard on each side and 5mm plaster skim; plasterboard joints are to be taped, with 30 mins fire-rated plasterboard to the stair enclosure.",{"name":119,"@type":110,"acceptedAnswer":120},"What roof and insulation build-ups are described for the dormer flat roof and roof junctions?",{"text":121,"@type":113},"The dormer flat roof uses three-ply built-up waterproof coverings over 50x150mm rafters with specified span limits, with 100mm insulation packed between rafters and an air gap arrangement; 13mm foilback plasterboard is finished with 5mm plaster skim. For the dormer cheeks/front panel, Code 5 lead flashing is specified at the tile/roof junction.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650462,1792828711,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":81},13056703020460,"https://ap-avatar.wpscdn.com/avatar/be000253dac470eee5d?_k=1778207105932848923","Proposed Loft Plan Scale: 1:50  \n  W3. New internal timber Built partintion wall 100mm studs with insulation insterted insulation.  \n15 Minutes Overrun for adequate ventilation  connected to mains C: SW3.  \n2 Gang Twin DP  \nOutlet 1   \nSW1  \nSwith for L1, second switch (SW2) for the same light is located on 1st floor at entrance of new stairs  \n2 Gang Twin DP Outlet 6  \n2 Gang Twin DP Outlet 7  \nL1  \nHallway and landing light suspended from ceiling by  100mm max; 2 way switch  \nC: SW1 & SW2  \nSW3  \n~~ ~~Pull switch for bathroom & overrun L2  \nBathroom light C: SW3  (cord 100mm away from wall)  \n~~ ~~ 100mm Celotex Insulation  \n|  |  |\n| --- | --- |\n|  |  |\n\nNew floor to be  \n175 x 50 C16 s/w  \njoists at 400mm c/c spanning between new steel beams  \n\n| \u003Cbr>|  |\n| --- | --- |\n| \u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>\u003Cbr>|  |\n\nExisting Party Walls, used for steel supporting base plates, see structural Plan for details,(to be confirmed by BC)  \nExisting Roof Tiles  \n13mm Vapour checked plasterboard and skim  \nW4. New internal timber Built partintion wall 100mm studs with insulation insterted insulation.  \nExisting Chimney Breast tobe worked around  \nExisting  \nNew floor to be 150x50 C16 s/w 400mm c/c spanning between new  \njoists at steel  \nRoof insulation; 100mm rockwool tightly packed  \n100mm Celotex insulation with 13mm vapour checked plasterboard and skim  \n100mm Celotex insulation with 13mm vapour checked plasterboard and skim  \nL3  \nBedroom light C: SW4  \nW1. New internal timber Built partintion wall 100mm studs with insulation insterted insulation.  \n2no. 740x1180mm Velux style centre roof windows. Double up joists around  \npivot pitched  \nopening  \nBuilt in Eave Storage  \n2 Gang Twin DP Outlet 4  \n with fibre glass insulation over and accross joists  \n~~ ~~ 3no. SW4,5,6  \nL4  \n~~ ~~ Bedroom light  \nC: SW5  \nC: L3, L4 & L5 (3 switched to control 3 lights in loft room)  \nW2. New internal timber Built partintion wall 100mm studs with insulation insterted insulation.  \n| Dormer Loft Plans Drawing No.: 01R1 of 01 |  |  |\n| --- | --- | --- |\n| Please note that before building works Commences; it is the responsibility of builders or owner to serve party wall notices to all neighbors.\u003Cbr>Dimensions\u003Cbr>All dimensions to be checked on site. Contractor to check site thoroughly before work starts and report any discrepancies.\u003Cbr>Dimensions stated are for guidance only. Contractor to verify all boundary positions and dimensions on site prior to commencing any work, making workshop drawings or buying any materials.\u003Cbr>Note: simple dimension check of the site has been conducted in order to prepare this scale drawing. Proposed designs have been provided by the client and final designs on\u003Cbr>this drawing have been approved by the client.\u003Cbr>No site supervision is implied or undertaken unless otherwise separately arranged. The drawing does not indicate the extent of any excavation works and the contractor is to determine this prior to submitting a quotation for the works or commencing any works.\u003Cbr>The drawing does not indicate or imply the structural condition of the existing property. The drawings have been prepared for assistance in the preparation of details for planning and building regulations purposes only. No check dimensions have been taken.\u003Cbr>Construction Notes:\u003Cbr>75 x 50mm timber studs at 400mm c/c fixed to existing structural walls with thermal insulation inserted in between studs. Lined\u003Cbr>with 13mm vapour checked plasterboard\u003Cbr>Dormer Cheeks/Front Panel\u003Cbr>Tiles to compliment existing. Tiles fixed to 40x25mm timber battens with breathable membrane beneath. Battens to be fixed to vapour control layer, fixed to 100x50 s/w studs at 400mm c/c insulated with 83mm rockwool and 17mm air gap. Finished internally with min: 10mm vapour checked plasterboard and skimmed.\u003Cbr>Code 5 lead flashing to tile/roof junction\u003Cbr>Existing Front Roof Pitch\u003Cbr>Repair/Replace tiles where necessary. Double up existing rafters insulated with 70mm rockwool and 30mm ai","cbCaitthry1QnV2m","https://ap.wps.com/l/cbCaitthry1QnV2m","pdf",1232650,"English","# Proposed Loft Plan Scale\n## Construction Notes\n## Floor Construction\n## Internal Wall Construction\n## Dormer Cheeks/Front Panel\n## Dormer Flat Roof Construction\n## Staircase\n## Rainwater\n## Dimensions and Compliance Notes","[{\"question\":\"What is the proposed scale used in the loft plan drawing?\",\"answer\":\"The plan states “Proposed Loft Plan Scale: 1:50”.\"},{\"question\":\"What materials and thicknesses are specified for the internal wall construction?\",\"answer\":\"New internal stud walls use 100x50mm studs with 100mm Rockwool, finished with 13mm plasterboard on each side and 5mm plaster skim; plasterboard joints are to be taped, with 30 mins fire-rated plasterboard to the stair enclosure.\"},{\"question\":\"What roof and insulation build-ups are described for the dormer flat roof and roof junctions?\",\"answer\":\"The dormer flat roof uses three-ply built-up waterproof coverings over 50x150mm rafters with specified span limits, with 100mm insulation packed between rafters and an air gap arrangement; 13mm foilback plasterboard is finished with 5mm plaster skim. For the dormer cheeks/front panel, Code 5 lead flashing is specified at the tile/roof junction.\"}]","Dormer Loft Plans - Proposed Loft Plan Scale 1:50 - Construction Notes - Drawing No.: 01R1 of 01 | PDF"]